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HUIDONG XIE


Last seen: 4 years ago |  Active since 2018

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Why MATLAB function fan2para is not able to generate sinograms with odd number of views?
img = imread('example.jpg'); img = rgb2gray(img); sino_fan = fanbeam(img, 538.52/0.710938, 'FanRotationIncrement', 360/1968,...

5 years ago | 0 answers | 0

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Answered
How do I convert distance in mm to pixels in MATLAB functions?
I found my answer here: http://dicom.nema.org/Dicom/2011/11_03pu.pdf

5 years ago | 0

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Question


How do I convert distance in mm to pixels in MATLAB functions?
Functions fanbeam, fan2para, para2fan, ifanbeam ask for parameters like "distance from fan-beam vertex to center of rotation", "...

5 years ago | 1 answer | 0

1

answer

Question


how do I implement Fourier series.
I now have the a0,an and bn. just wondering that how do I generate the "sum of square wave" and draw it out? syms n t w0...

6 years ago | 1 answer | 0

1

answer

Question


Regarding calculating convolution in Matlab.
Just wondering that why my calculation of conv(h,x) is not correct? The red curve in the picture is what I expected for the conv...

6 years ago | 1 answer | 0

1

answer

Question


About plotting piecewise function.
<</matlabcentral/answers/uploaded_files/102995/Screen%20Shot%202018-01-30%20at%204.26.44%20PM.png>> why Matlab says index exc...

6 years ago | 1 answer | 0

1

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Question


How do I solve this HW question by Matlab?
<</matlabcentral/answers/uploaded_files/102965/Screen%20Shot%202018-01-30%20at%209.30.02%20AM.png>> I draw u(t) and h(t) by t...

6 years ago | 1 answer | 0

1

answer